package com.gollum.common.utils;

import cn.hutool.core.convert.Convert;
import cn.hutool.extra.servlet.ServletUtil;
import com.gollum.common.constant.SystemConstants;
import com.gollum.common.enums.OperatorType;
import eu.bitwalker.useragentutils.UserAgent;
import io.swagger.models.auth.In;
import org.springframework.web.context.request.RequestAttributes;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.net.URLDecoder;
import java.net.URLEncoder;

/**
 * <pre>工具类 </pre>
 *
 * @author Herther
 * @version 1.0.0
 * @createTime 2022年08月23日 22:43:00
 */
public class ServletUtils extends ServletUtil {

    private static final String ANDROID = "Android";

    private static final String IPHONE = "iPhone";

    private static final String MAC = "MAC OS X";

    private static final String WIN = "Windows";

    /**
     * 获取String参数
     *
     * @param name 参数名
     * @auther: Herther
     * @version 1.0.0
     * @date: 2022/8/23 22:44
     */
    public static String getParameter(String name)
    {
        return getRequest().getParameter(name);
    }


    /**
     *  获取String参数
     *
     * @auther: Herther
     * @version 1.0.0
     * @date: 2022/8/23 22:45
     */
    public static String getParameter(String name, String defaultValue)
    {
        return Convert.toStr(getRequest().getParameter(name), defaultValue);
    }

   /**
    * 获取Integer参数
    *
    * @auther: Herther
    * @version 1.0.0
    * @date: 2022/8/23 22:45
    */
    public static Integer getParameterToInt(String name) {
        return Convert.toInt(getRequest().getParameter(name));
    }

    /**
     * 获取Integer参数
     *
     * @auther: Herther
     * @version 1.0.0
     * @date: 2022/8/23 22:45
     */
    public static Integer getParameterToInt(String name, Integer defaultValue) {
        return Convert.toInt(getRequest().getParameter(name), defaultValue);
    }

    /**
     * 获取Boolean参数
     *
     * @auther: Herther
     * @version 1.0.0
     * @date: 2022/8/23 22:45
     */
    public static Boolean getParameterToBool(String name) {
        return Convert.toBool(getRequest().getParameter(name));
    }

    /**
     * 获取Boolean参数
     *
     * @auther: Herther
     * @version 1.0.0
     * @date: 2022/8/23 22:45
     */
    public static Boolean getParameterToBool(String name, Boolean defaultValue) {
        return Convert.toBool(getRequest().getParameter(name), defaultValue);
    }

    /**
     * 获取request
     */
    public static HttpServletRequest getRequest() {
        return getRequestAttributes().getRequest();
    }

    /**
     * 获取response
     */
    public static HttpServletResponse getResponse() {
        return getRequestAttributes().getResponse();
    }

    /**
     * 获取session
     */
    public static HttpSession getSession() {
        return getRequest().getSession();
    }

    public static ServletRequestAttributes getRequestAttributes() {
        RequestAttributes attributes = RequestContextHolder.getRequestAttributes();
        return (ServletRequestAttributes) attributes;
    }

    /**
     * 将字符串渲染到客户端
     *
     * @param response 渲染对象
     * @param string 待渲染的字符串
     */
    public static void renderString(HttpServletResponse response, String string) {
        try
        {
            response.setStatus(200);
            response.setContentType("application/json");
            response.setCharacterEncoding("utf-8");
            response.getWriter().print(string);
        }
        catch (IOException e)
        {
            e.printStackTrace();
        }
    }

    /**
     * 是否是Ajax异步请求
     *
     * @param request
     */
    public static boolean isAjaxRequest(HttpServletRequest request) {
        String accept = request.getHeader("accept");
        if (accept != null && accept.contains("application/json"))
        {
            return true;
        }

        String xRequestedWith = request.getHeader("X-Requested-With");
        if (xRequestedWith != null && xRequestedWith.contains("XMLHttpRequest"))
        {
            return true;
        }

        String uri = request.getRequestURI();
        if (StringUtils.inStringIgnoreCase(uri, ".json", ".xml"))
        {
            return true;
        }

        String ajax = request.getParameter("__ajax");
        return StringUtils.inStringIgnoreCase(ajax, "json", "xml");
    }

    /**
     * 内容编码
     *
     * @param str 内容
     * @return 编码后的内容
     */
    public static String urlEncode(String str)
    {
        try
        {
            return URLEncoder.encode(str, SystemConstants.UTF8);
        }
        catch (UnsupportedEncodingException e)
        {
            return StringUtils.EMPTY;
        }
    }

    /**
     * 内容解码
     *
     * @param str 内容
     * @return 解码后的内容
     */
    public static String urlDecode(String str)
    {
        try
        {
            return URLDecoder.decode(str, SystemConstants.UTF8);
        }
        catch (UnsupportedEncodingException e)
        {
            return StringUtils.EMPTY;
        }
    }


    /**
     * 判断设备类型
     *
     * @param
     * @return
     * @auther: Herther
     * @since 1.0.0
     * @date: 2022/9/15 22:44
     */
    public static OperatorType getDeviceType(){
        String userAgent = getRequest().getHeader("User-Agent");
        if (userAgent.indexOf(ANDROID) !=-1  ||  userAgent.indexOf(ANDROID) != -1){
            return OperatorType.MOBILE;
        }else if (userAgent.indexOf(MAC) !=-1 || userAgent.indexOf(WIN) != -1){
            return OperatorType.PC;
        }else{
            return OperatorType.OTHER;
        }
    }
}
